Closure



June 1,1937. L. R. N. CARVALHO CLOSURE Filed Aug. 27, 1936 I INVENTOR.Lzsua R. N. CARVALHO ATTO EYS,

Patented .iune i, 1.937v

CHESHIRE Leslie R. N. Car-valho, Toledo, Ohio, assignor to t Glass Compa corporation 3 Claims. (Cl. 215-43) for completely obscuring andprotecting the raw metal surfaces at the extremities of the threadedband which is nested within the outer smooth shell.

Anotherobject of the invention is to provide a closure of the typedisclosed in the above mentioned application which, in attaining theabove noted protective features, results in a closure that is free fromconspicuous joints and sharp edges and which is satisfactory in use.

Other objects will be in part apparent'and in part pointed outhereinafter.

In the drawing:

Fig. 1 is a vertical transverse sectional view of a metal closuremanufactured in accordance with the principles of the present invention;

Fig. 2 is a fragmentary sectional view taken substantially along theline 2-2 of Fig. 1.

The closure includes an outer shell in consisting of a circular topportion ii and a depending annular flange or skirt l2, the latter havingits lower edge portion beaded or curled inwardly andupwardly to form ahollow bead I3 within which the lower edge M of a screw band i5 isnested.

The screw band i5 is provided with screw threads l6 that are rolled inthe usual manner.

The band is slightly greater in length than the internal circumferenceof the skirt I2 and the adjacent ends thereof are folded or reversedupon themselves outwardly in such a manner that the raw edges ll thereofare concealed behind the metal of the band and occupy a position inclose I proximity to the inner surface of the outer shell ill. The screwthreads l6 terminate short of the ends of the band l5.

The folded ends of the band l5 abut as at l8 in such a manner as topresent a smooth joint that will not interfere with the application ofthe assembled closure to a container.

From the above description it is apparent that the present inventionresults in a closure in which the contents of the container to which itmay be applied cannot seep through the joint l8 and penetrate the spacesl9 behind the metal of the band IS in which the raw edges H are nested.Furthermore, all exposed portions of the closure are smooth and even andthere are no rough 5 portions or projections present that might beobstructed by fins or other defects that are sometimes encountered inscrew threaded types of finishes on glass containers.

Modifications may be resorted to within the m spirit and scope of theappended claims.

I claim: 1

1. A closure formed of sheet metal and comprising a top cover portionand a two-ply depending skirt, the outer ply of the skirt being integral15 with the cover portion and the inner ply being formed of a strip ofslightly greater length than the'internal circumference of the outer plyand being curved to fit within said outer ply, said inner ply beingformed with screw threads that terminate short of the ends of the strip,the extreme ends of said strip being folded upon themselves outwardlyand being nested between the metal of the strip and the wall of theshell.

2. A closure formed of sheet metal and comprising a top cover portionand a two-ply depending 'skilt, the outer ply of the skirt beingintegral with the cover portion and the inner ply being formed of astrip of slightly greater'length than the internal circumference of theouter ply and being curved to fit within said outer ply, said 30 innerply being formed with screw threads that terminate short of the ends ofthe strip, the extreme ends of said strip being nested between the metalof the strip and the wall of the shell.

3. A closure formed of sheet metal and comprising a top cover portionand a two-ply depending skirt, the outer ply of the skirt being integralwith the cover portion and the inner ply being formed of a strip ofslightly greater length than the internal circumference of the outer plyand 40 being curved. to fit within said outer ply, said inner ply beingformed with screw threads that terminate short of the ends of the strip,said ends being folded upon themselves outwardly and being nestedbetween the metal of the strip and the wall of the shell, the edgesformed by said ends beingfolded abutting in close proximity to saidshell.

.LESIJE R. N. CARVALHO.

